This article is from the Asthma FAQ, by Patricia Wrean and Marie Goldenberg email@example.com with numerous contributions by others.
Cystic fibrosis is a disease in which excessive amounts of
unusually thick mucus are produced throughout the body.
Because this mucus production also occurs in the lungs,
people with cystic fibrosis are extraordinarily prone to
bacterial infections which result in progressive lung damage.
Cystic fibrosis can be diagnosed by a "sweat test" as people
with cystic fibrosis have elevated chloride levels in their
perspiration. This condition often resembles asthma in